Todomatsu gets a job at a local coffeehouse. His brothers want no such success. / Dekapan and Dayon enjoy a carefree northbound trip together.

Iyami and Chibita dress up as girls, and trick the Matsuno brothers into falling in love with them with the help of a sex-change drug. It's only a matter of time before this plan goes bad.

Wanting to become the main protagonist of the franchise again, Iyami holds a bizarre kart race to determine who the protagonist of Osomatsu-san will be.